%0 Journal Article
%T FDA-MIMO Beampattern Synthesis with Hamming Window Weighted Linear Frequency Increments
%A An
%A Lei
%A Bai
%A Juan
%A Tan
%A Ming
%A Wang
%A Chunyang
%A Yuan
%A Hui
%J -
%D 2020
%R https://doi.org/10.1155/2020/4851909
%X By utilizing a tiny frequency increment across the array elements, frequency diverse array (FDA) generates a beampattern possessing the property of range-angle-dependent. However, the beampattern of the conventional FDA is Ħ°SĦħ-shaped, which means it is coupled in range-angle domains, resulting in low target indication accuracy and poor jamming suppression ability. In this paper, taking advantage of multiple-input multiple-output (MIMO) technique and multiple matched filters, a new FDA framework using Hamming window weighted linear frequency increments is proposed. Correct FDA-MIMO framework and multiple matched filters are used to remove the influence of the time parameter. A range-angle-decoupled beampattern with sharp pencil-shaped mainlobe and low sidelobe levels can be produced. Comparing with the existing FDA-decoupled transmit beampattern design methods, a more focusing beampattern can be achieved. Simulation results validate the superiority of the proposed system
%U https://www.hindawi.com/journals/ijae/2020/4851909/